Original title: Nokia prepares offer to buy Juniper; shares skyrocket nearly 20% Techmeme summary: CNBC: Sources: Nokia is in talks to buy Juniper Networks; o

Original title: Nokia prepares offer to buy Juniper; shares skyrocket nearly 20% Techmeme summary: CNBC: Sources: Nokia is in talks to buy Juniper Networks; one source says the deal would value Juniper at ~$16B